"The mating time is generally not so long. Sometimes several minutes. The shortest may be 30 seconds," said Zhang Zhihe, director of Chengdu Research Base of Giant Panda Breeding in Chengdu, China. "If they don't like the female's personality or the females don't like the male's personality, they won't mate. That's the biggest reason why in captivity the mating is difficult."

While that may sound perfectly reasonable for humans, it's a problem when it comes to securing the future of the species.

Pandas are known to be isolated creatures and poor breeders, and in captivity the problem may be exacerbated. Zhihe and his team have tried a number of measures to try to cure the male panda of his woefully low libido -- including showing videos of fellow pandas making love.

In the privacy of their own cages, captive male pandas watch the sights and sounds of love-making on TV. Hopefully, Zhihe says, they'll be aroused. "We're sure the sound of the video will stimulate the panda and the males' interest," Zhihe said.

Along with watching porn, pandas are doing "sexercises," or specialized exercises to strengthen the males' hind legs and increase their stamina.

Scientists have found that the combination of porn, exercises, and the occasional menage a trois -- to get young male pandas curious about sex -- have proved successful. Zhihe says that more than 60 percent of his pandas are now capable of having sex on their own -- up from just 25 percent twenty years ago.

"The mating time is generally not so long. Sometimes several minutes. The shortest may be 30 seconds," said Zhang Zhihe, director of Chengdu Research Base of Giant Panda Breeding in Chengdu, China. "If they don't like the female's personality or the females don't like the male's personality, they won't mate. That's the biggest reason why in captivity the mating is difficult."

While that may sound perfectly reasonable for humans, it's a problem when it comes to securing the future of the species.

Pandas are known to be isolated creatures and poor breeders, and in captivity the problem may be exacerbated. Zhihe and his team have tried a number of measures to try to cure the male panda of his woefully low libido -- including showing videos of fellow pandas making love.

In the privacy of their own cages, captive male pandas watch the sights and sounds of love-making on TV. Hopefully, Zhihe says, they'll be aroused. "We're sure the sound of the video will stimulate the panda and the males' interest," Zhihe said.

Along with watching porn, pandas are doing "sexercises," or specialized exercises to strengthen the males' hind legs and increase their stamina.

Scientists have found that the combination of porn, exercises, and the occasional menage a trois -- to get young male pandas curious about sex -- have proved successful. Zhihe says that more than 60 percent of his pandas are now capable of having sex on their own -- up from just 25 percent twenty years ago.